[Scummvm-tracker] [ScummVM :: Bugs] #15398: SCUMM: DIG: Fast room skipping in first two screens produces glitches

[ScummVM :: Bugs]

#15398: SCUMM: DIG: Fast room skipping in first two screens produces glitches
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Reporter:  AndywinXp  |      Owner:  (none)
    Type:  defect     |     Status:  new
Priority:  high       |  Component:  Engine: SCUMM
 Version:             |   Keywords:
    Game:  The Dig    |
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 This is a regression from 2.8.1 to 2.9.0git which I didn't have time to
 look up yet.

 It happens in the very beginning of the game. For brevity I will now refer
 to the first room of the game (which is very wide as it contains both the
 space ship and the asteroid far view) as two separate rooms. A "room
 change" between these two actually appears to be a camera movement.

 == How to reproduce
 1. Start up the game and skip the intro with ESC
 2. Move the mouse to the right of the screen and **double click a few
 times** on the "asteroid" hotspot until the game immediately changes the
 room without a transition
 3. On the new screen perform the same double-clicking on the left side of
 the screen to go back to the previous room

 == What will happen then
 The background will stay the same as if the room was never changed, while
 the actor will be in their correct state instead.

 == What should have happened
 The background should have changed on room change.




 I know, I know, I'm a SCUMM maintainer and I should fix it instead of
 filing a ticket, but with the things I have to finish before release I
 swear I'm going to forget about this if I don't file it... And I'm really
 not sure I ever touched the camera code.
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Ticket URL: <https://bugs.scummvm.org/ticket/15398>
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